Top "Equality" questions

Equality is a relationship between two or more items or variables or objects that exists if (1) the items are the same item, variable, or object or (2) the items are different items, variables or objects but they have the same value.

Comparing two structs using ==

I am trying to compare two structs using equals (==) in C#. My struct is below: public struct CisSettings : IEquatable<…

c# struct equality
Python3 Determine if two dictionaries are equal

This seems trivial, but I cannot find a built-in or simple way to determine if two dictionaries are equal. What …

python python-3.x dictionary equality
Java contains vs anyMatch behaviour

So if I have a Name object and have an ArrayList of type Name (names), and I want to ascertain …

java java-stream equality
Pandas DataFrames with NaNs equality comparison

In the context of unit testing some functions, I'm trying to establish the equality of 2 DataFrames using python pandas: ipdb&…

python pandas equality nan
Comparing NaN values for equality in Javascript

I need to compare two numeric values for equality in Javascript. The values may be NaN as well. I've come …

javascript comparison equality nan
Can I use ' == ' to compare two vectors. I tried it and seems to be working fine. But I don't know whether it will work in more complex situations

First example: int main(){ using namespace std; vector<int> v1{10, 20, 30, 40, 50}; vector<int> v2{10, 20, 30, 40, 50}; if(v1==v2) …

c++ vector operator-overloading equality
php == vs === operator

What is the difference between == and === in PHP? What would be some useful examples? Additionally, how are these operators used …

php comparison operators equality
How to test two dateTimes for being the same date?

Possible Duplicate: How to compare Dates in C# This code of mine: public static string getLogFileNameForDate(DateTime dt) { if (dt.…

c# datetime equality
Why `null >= 0 && null <= 0` but not `null == 0`?

I had to write a routine that increments the value of a variable by 1 if its type is number and …

javascript null comparison equality
Using scanf in a while loop

Probably an extremely simple answer to this extremely simple question: I'm reading "C Primer Plus" by Pratta and he keeps …

c while-loop equality scanf